Psychodiagnostics - Ridgewood, New Jersey

Welcome to Psychodiagnostics, a private practice specializing in psychological assessment.  We measure personality, intelligence, academics and symptoms with professional and reliable instruments.  Descriptions, conclusions and formal diagnoses are carefully formed through observation, history and comprehensive assessments. 

Psychodiagnostics attempts to answer all referral questions. We focus on the area of concern, while also screening other areas for potential weaknesses.   In this way, we describe weaknesses, while ruling out alternative explanations.  It is our goal to answer your question.  Our assessments can discriminate between normal experience and clinical pathology, personality variation and personality disorders, attention deficit hyperactivity disorder and other causes of inattention, specific learning problems and global intellectual delays.  We can differentiate between disorders, describe disorders or explain them.  In addition, our staff can recommend treatment plans and answer questions through assessment or consultation. Psychodiagnostics serves New Jersey and New York residents and families.  We also offer individually arranged assessments and ongoing contracts to psychological and psychiatric practices, schools and agencies.   

General information about mental illness, diagnosis, personality, intelligence, academics and testing, can be found by clicking the links at the right.  To see the services that we offer, click on assessment, diagnosis or consultation at the top of the page.  Call (862) 210-9043 for more information or to schedule an appointment.

We take the following insurances:
  • Cigna
  • United Health Care
  • United Behavioral Health
  • Oxford
  • Blue Cross Blue Shield *PPO only
  • Optum
  • Qualcare

  • If you have any questions about insurances we accept, please feel free to contact us, as we may accept yours as well.

    Dr. Steven C. Hertler
    10 Sycamore Avenue
    Ho Ho Kus, New Jersey 07423

    Second Location
    218 Lorraine Avenue
    Upper Montclair, New Jersey 07043


    Thank you. I have received your report in the mail. It was helpful to me and I thank you so much. Thank you so much and you're fantastic! I can't thank you enough. I thank you so much for your time yesterday.

    I hope all is well with you. He asked on the way to the airport yesterday that I let you know that he PASSED (!!!) his FE exam. A great weight off his shoulders Again, thank you for your help throughout

    I just gave your name to my friend, for her daughter. Also, I have been meaning to tell you that John saw Dr. Nalven in December and she did finally diagnose John w/ Autism, as you did. He gets ABA at home and is in a full day integrated program and has improved in some areas. We have learned, after 5 years that progress feels incredibly slight... but then you look back at a 6 month period and can see growth. We hope all is well with you. Please know that the way you listened to me and asked pointed questions which resulted in the diagnosis are the reason John is on the right path today. We will be forever grateful.

    The ADHD diagnosis never range true with me. This report was so helpful. It made me better understand my son. It’s like all the pieces of the puzzle fell into place. It all makes sense now.

    You're amazing. Thank you for this information.